Patchfirst
CVE-2020-6287 KEVPublic exploit Critical · 10.0 EPSS 94.7%

SAP NetWeaver Missing Authentication for Critical Function Vulnerability

SAP · NetWeaver

Summary

A missing authentication check in the LM Configuration Wizard component of SAP NetWeaver AS JAVA lets unauthenticated actors reach configuration functions that should be protected. An attacker with network access to the system needs no credentials and no user interaction, and can use these functions to carry out critical actions, including creating an administrative user.

Official description · NVD

SAP NetWeaver AS JAVA (LM Configuration Wizard), versions - 7.30, 7.31, 7.40, 7.50, does not perform an authentication check which allows an attacker without prior authentication to execute configuration tasks to perform critical actions against the SAP Java system, including the ability to create an administrative user, and therefore compromising Confidentiality, Integrity and Availability of the system, leading to Missing Authentication Check.

Breakdown
70.0 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
4/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited 9 months after disclosure. Public exploit code (Metasploit) was available the same day.

  1. DisclosedPublic exploit codeMetasploitday 0
  2. First seen exploitedVulnCheck KEV evidence+9 mo
  3. Added to CISA KEVEU database agrees+16 mo

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Valid Accounts T1078 Medium also Persistence, Privilege Escalation, Stealth
AI mapping from the description · primary impact

creates admin account enabling persistent valid access

the ability to create an administrative user
From the official description (NVD) Original (opens in a new tab) ↗
Exploit Public-Facing Application T1190 Medium
AI mapping from the description · how it is exploited

unauthenticated exploitation of public-facing application

does not perform an authentication check which allows an attacker without prior authentication
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 205 general rules for its techniques

Rules for this CVE

0 that reference CVE-2020-6287 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

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What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

6 links, grouped by NVD tag (5 duplicates merged)
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